Using the Dial Fit Touch - Free Automatic Soap Dispenser is easy. First, insert the 4D Duracell Alkaline batteries that come with it. Then, install the antibacterial refills. Place your hand under the dispenser, and it will sense your hand and dispense soap. You can set it to dispense 1, 2, or 3 shots per activation. If you remove your hand during the dispensing process, the smart - sensor will stop the activation. For maintenance, check the fill level through the clear side panel regularly and replace the refills when needed. After each use, the Clean Tip Technology will clean the pump tip, but you can also wipe it gently with a clean cloth from time to time. Keep the dispenser in a dry place to ensure its normal operation.